JP2009096488A - Cushioning member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cushioning member with improved cushioning properties against impact without using a cushioning member of a separated member. <P>SOLUTION: The cushioning member 6 holds both end parts in the lengthwise direction of a packing member 5 for packing a commodity. A pair of rising parts 6a and 6b in the lengthwise direction and the bottom part 6c connecting their lower ends form an approximate U-shape. On the bottom part 6c of the cushioning member 6, bending parts 6h rising so that the upper ends approach the bottom face 5a of the packing member 5 from both ends in the widthwise direction, are formed. The respective bending parts 6h are respectively connected with the respective rising parts 6a and 6b at a folded part 6i with a triangle shape. On respective bending parts 6h, lateral stripes of the corrugated fiberboard are positioned in the direction orthogonal to the rising direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a buffer member that holds both end portions in the length direction of a packing member that packs a product.

  Conventionally, there is a buffer member that holds both end portions in the length direction of a packing member that packs a product (see Patent Document 1).

  By the way, as shown in FIGS. 12A and 12B, the cushioning member 2 that holds both end portions (only the left end portion is shown) in the length direction of a packing member 1 that packs a product (for example, a fixing unit of an image forming apparatus). Is formed of a corrugated cardboard, and is formed in a substantially U shape by a pair of rising parts 2a, 2b in the length direction and a bottom part 2c connecting the lower ends thereof, and each rising part 2a, 2b has a vertical The packaging member 1 is configured such that both side surfaces 1a in the width direction are locked and held by locking portions of the rising portions 2a and 2b.

  Specifically, the outer slits 1b formed on both side surfaces 1a of the packing member 1 are fitted into the slits (locking portions) 2d formed on the rising portions 2a on the outer side of the buffer member 2 in a cross shape from above. At the same time, the inner slits 1c formed on both side surfaces 1a of the packing member 1 are cross-shaped from above on the stepped portions (locking portions) 2f of the notches 2e formed on the rising portions 2b on the inner side of the buffer member 2. It is designed to be locked and held.

And the buffer member 2 is assembled | attached to the packaging member 1, and it stores in a cardboard box in the state which packed the goods in the packaging member 1, and comes to be conveyed with the cardboard box.
Japanese Patent Publication No. 6-84180

  However, a notch 2e is formed in the rising portion 2b on the inner side of the buffer member 2, and the slit 1c on the inner side of the packing member 1 is fitted into the step 2f of the notch 2e in a cross shape from above. Since it is designed to be held and held, when a downward impact (see arrow a) acts on the packaging member 1 during transportation by a truck, the impact is applied to the stepped portion of the rising portion 2b inside the buffer member 2. It will be supported by 2f.

  At this time, since the vertical portion of the corrugated cardboard is positioned at the rising portion 2b, the impact in the downward direction a of the packaging member 1 can be received and supported by the step portion 2f, but the rising portion 2b is bordered by the notch 2e. Has a tendency to spread (escape) in the left-right direction (see arrow b), and if it spreads too much, it becomes impossible to receive and support the impact at the stepped portion 2f, resulting in a problem of poor buffering. In addition, although it can also be considered to insert another cushioning material into the gap between the bottom surface of the packing member 1 and the bottom portion 2c of the cushioning member 2, a cushioning material of another member is required.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a shock-absorbing member that further improves shock-absorbing properties without using a shock-absorbing material as a separate member.

  In order to solve the above-mentioned problems, the present invention provides a shock-absorbing member for holding both end portions in the length direction of a packing member for packing a product, wherein the shock-absorbing member is made of cardboard and has a pair of rising edges in the length direction. Part and a bottom part connecting the lower ends thereof are formed in a substantially U shape, and the vertical parts of the cardboard are positioned along the rising direction at each rising part, and the packing member is arranged in the width direction. While both side surfaces are locked and held by the locking portions of the rising portions, the bottom portion of the buffer member is formed with a bent portion that rises from both ends in the width direction so that the upper end approaches the bottom surface of the packing member. Each bent portion is connected to each of the rising portions by a triangular folding portion, and each side of the corrugated cardboard is positioned in a direction perpendicular to the rising direction at each of the bent portions. There is provided a member.

  Preferably, the upper end of each bent portion is covered with a cover portion extending from at least one of the rising portions.

  According to the present invention, a bent portion that rises from both ends in the width direction so that the upper end approaches the bottom surface of the packing member is formed on the bottom portion that connects the lower ends of the pair of rising portions of the cushioning member made of corrugated cardboard. The folding part is connected to each rising part, and the lateral part of the corrugated cardboard is positioned in the bent part in a direction perpendicular to the rising direction, so that the rising part spreads left and right due to the downward impact of the packaging member. Even if it becomes impossible to receive and support the impact at the stepped portion, the downward impact of the packaging member can be received and supported at the bent portion. In addition, since the side of the corrugated cardboard is located in the lateral direction and is easily bent at the bent portion, the impact is easily absorbed.

  In addition, since the bent portion is connected to each rising portion by the folding portion, the base portion of the inner rising portion is reinforced and hardly spreads in the left-right direction. As a result, the shock-absorbing property of the shock-absorbing member is further improved without using a shock-absorbing material as a separate member.

  According to the second aspect, by covering the upper end of each bent portion with the cover portion, the downward impact of the packaging member is dispersed from the cover portion to each bent portion, so that the buffering property is stabilized. Moreover, since the box of the closed cross section connected with each rising part is formed by the bottom part, each bending part, and a cover part, a buffering property will be stabilized also from this point.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a state in which a cushioning member 6 is assembled to a packing member 5 and a product (not shown) is packed in the packing member 5 and stored in a horizontally-long rectangular cardboard box 7. The upper lids 7a to 7d of the four sides are normally closed, and are opened as shown in the figure when the commodity of the packing member 5 is taken out.

  2 is a front perspective view of a state in which an assembly in which the cushioning member 6 is assembled to the packing member 5 is taken out from the cardboard box 7, FIG. 3 is a perspective view of the same side, and FIG. It is a front side perspective view.

  First, the packing member 5 will be described. The packaging member 5 is for packaging a product such as a fixing unit of an image forming apparatus, for example, and has a substantially horizontally long rectangular tube shape. The bottom surface 5a and both side surfaces 5b and 5c (5b is a front side surface, 5c is a rear side surface). And the upper surface lid portion 5d.

  The packaging member 5 is assembled by being cut out from one cardboard as shown in a development view in FIG. 6 and a perspective view in the middle of assembly in FIG. In the development view of FIG. 6, the longitudinal eye of the cardboard is positioned along the length direction L.

  At both sides in the width direction of the bottom surface 5a, the front side surface 5b and the rear side surface 5c are bent at right angles by two valley fold lines d and e. At that time, two V fold lines f and one mountain fold line g are formed at both end portions of the bottom surface 5a in the length direction, and two end fold lines 5e are formed at one end portion. An inverted L-shaped portion 5f is formed by one valley fold line h and one mountain fold line i.

  Further, at both end portions in the length direction, outer slits 5g are formed on both side surfaces 5b and 5c by punching holes j and k formed in the width direction so as to slightly extend from the front side surface 5b and the rear side surface 5c to the bottom surface 5a. And the inner slit 5h are formed.

  Further, the upper surface (lid portion) 5d is bent at a right angle by one valley fold line m at the upper end portion in the middle of the length direction of the rear side surface 5c. Thereby, in the side view of the packaging member 5, the upper surface lid portion 5d is positioned on the upper portion of the main body portion formed in a substantially U shape by the bottom surface 5a, the front side surface 5b, and the rear side surface 5c, and is substantially in the shape of a horizontally long rectangular tube. Will be configured.

  When the upper surface lid portion 5d is bent at a right angle by a valley fold line m, a protruding piece 5i that rises from the upper end of the rear side surface 5c is formed by the cut hole n and cut upward. A pair of locking pieces 5j is formed.

  A handle block 5k is integrally formed at the tip of the upper surface lid 5d. The handle block 5k is formed in a horizontally long rectangular tube shape by sequentially bending the first piece 5p, the second piece 5q, the third piece 5r, and the fourth piece 5s outwardly by the four valley fold lines p. become.

  When the first piece 5p is bent at a right angle by the valley fold line p, a protruding piece 5t that falls from the lower end of the first piece 5p is formed in the first piece 5p by the cut hole l of the upper surface lid portion 5d. In addition, when the second piece 5q is bent at a right angle by the valley fold line p, a handle portion 5u that can be raised from the upper end of the first piece 5p is formed by the cut hole q of the second piece 5q.

  The third piece 5r is formed with a pair of locking holes 5v that can be locked by forcibly fitting the pair of locking pieces 5j of the upper surface lid 5d, and the fourth piece 5s includes Between the inner surface of the 1st piece 5p, the insertion hollow 5x which can insert the protrusion 5w which stands | starts up from the upper end of the front side surface 5b from the downward direction is formed.

  And the handle block 5k at the tip of the upper surface lid 5d is formed into a horizontally long rectangular tube shape by sequentially bending the first piece 5p to the fourth piece 5s outwardly by the four valley fold lines p. In the state, as shown in FIG. 4 and FIG. 8, the handle block 5j of the upper surface lid 5d is pushed into the engagement hole 5v of the third piece 5r and forcibly fitted, so that the handle block is attached to the distal end portion of the upper surface lid 5d. 5k comes to be locked in a shape-retained state.

  Thereafter, when the inner surface of the projecting piece 5t of the first piece 5p is placed along the outer surface of the projecting piece 5w of the front side surface 5b while the upper surface (lid portion) 5d is bent downward by the valley fold line m, the projecting piece of the front side surface 5b is obtained. When 5w is inserted into the insertion recess 5x of the fourth piece 5s from below, the tip of the upper surface lid 5d is locked to the upper end of the front side surface 5b, and the upper opening of the packing member 5 is closed (FIG. 4 state).

  The handle portion 5u is normally located in the cut hole q of the second piece 5q (a flat state on the second piece 5q), and rises upward from the valley fold line p during use, so that the first piece 5p The top cover 5d is folded upward by the valley fold line m so that the upper opening of the packaging member 5 is opened by picking up the handle 5u with a finger and pulling it upward. (State of FIG. 5). Goods can be taken in and out from the upper opening of the packing member 5.

  That is, the handle portion 5u is pressed by the upper lids 7a to 7d against the bending force when the upper lids 7a to 7d of the cardboard box 7 are closed, and rises due to the bending force jumping up when the upper lids 7a to 7d are opened. It is like that.

  Next, the buffer member 6 will be described. The buffer member 6 holds both end portions of the packing member 5 in the length direction, and is formed in a substantially U shape by a pair of rising portions 6a and 6b in the length direction and a bottom portion 6c connecting the lower ends thereof. ing.

  The shock-absorbing member 6 is assembled by being cut out from one cardboard as shown in a developed view in FIG. 9 and a perspective view in the middle of assembly in FIGS. 10 and 11. In the development view of FIG. 9, the longitudinal eye of the cardboard is positioned along the length direction (rise direction of the rising portions 6 a and 6 b) L.

  At both sides of the bottom surface 6c in the length direction, the outer rising portion 6a and the inner rising portion 6b are bent at right angles by two valley fold lines r and s. The outer rising portion 6a is folded inward by two mountain fold lines t and t. The outer rising portion 6a is formed with a pair of outer slits 6d extending downward from the upper end portion by punching holes u.

  At the center position in the width direction of the inner rising portion 6b, it is cut out by two cut lines w, w, and is formed in a downward U-shape in the direction of the outer rising portion 6a by two valley fold lines v, v. A cover (lid) portion 6e that can be bent is formed.

  By cutting out the cover portion 6e, a pair of stepped portions (locking portions) 6g are formed on both sides of the notch 6f in the inner rising portion 6b.

  At both ends in the width direction of the bottom portion 6c, bent portions 6h that rise so that the upper end approaches the bottom surface 5a of the packing member 5 are formed by two valley fold lines x, and each bent portion 6h has two The rising portions 6a, 6a, 6b are folded into the rising portions 6a, 6b by the valley folding lines z, which are 45 degrees triangular in relation to the mountain folding lines y connected to the valley folding lines r, s. 6b is connected to each other. In each of the bent portions 6h and each of the folded portions 6f, the horizontal line of the cardboard is positioned in a direction orthogonal to the rising direction of the rising portions 6a and 6b.

  An insertion groove 6k into which the hook portion 6j of the cover (lid) portion 6e can be inserted is formed at the corner portion between the folded portion 6i and the folded portion 6h on the outer rising portion 6a side.

  Then, as shown in FIGS. 10 (a) and 10 (b), at both sides in the length direction of the bottom surface 6c, the outer rising portion 6a and the inner rising portion 6b are perpendicular to each other by the two valley fold lines r and s. While folding, the folding part 6h is raised by the two valley fold lines x, and the folding part 6i is folded in a triangular shape toward the rising parts 6a and 6b by the mountain fold line y and the valley fold line z. 11 (a), a box having an open top surface is formed between the rising portions 6a and 6b.

  Thereafter, as shown in FIG. 11 (b), the cover (lid) portion 6e of the inner rising portion 6b is bent along the two valley fold lines v and v, and the hook portion 6j is folded between the folding portion 6i and the bent portion 6h. When inserted into the insertion groove 6k at the corner, the hook portion 6j is locked to the insertion groove 6k so that the upper surface of the box between the rising portions 6a and 6b is closed, and between the rising portions 6a and 6b. A box with a closed cross section is formed.

  In order to assemble the cushioning member 6 to the packaging member 5 assembled as described above, the packaging member is inserted into the slit (locking portion) 6d formed in the rising portion 6a outside the cushioning member 6 as in the background art described above. The outer slits 5g formed on both side surfaces 5b and 5c of FIG. 5 are fitted and held in a cross shape from above, and the stepped portion of the notch 6f formed on the rising portion 6b on the inner side of the buffer member 6 (locking) Part) 6g, the inner slits 5h formed on both side surfaces 5b, 5c of the packing member 5 are fitted in a cross shape from above to be held in a locked state (the state shown in FIGS. 2 and 3).

  Then, the buffer member 6 is assembled to the packing member 5 and the product is packed in the packing member 5 and stored in the cardboard box 7.

  In the embodiment described above, the bottom 6c connecting the lower ends of the pair of rising portions 6a, 6b of the cushioning member 6 made of cardboard is bent so that the upper end approaches the bottom surface 5a of the packing member 5 from both ends in the width direction A portion 6h is formed, and the bent portion 6h is connected to each rising portion 6a, 6b by a folding portion 6i, and the bent portion 6h has a horizontal surface of the corrugated cardboard in a direction perpendicular to the rising direction of each rising portion 6a, 6b. Is located.

  Therefore, even if the rising portion 6b on the inner side of the cushioning member 6 spreads in the left-right direction due to the downward impact of the packing member 5 and cannot be supported by the step portion 6g, the downward impact of the packing member 5 is achieved. Can be received and supported by the bent portion 6 h of the buffer member 6. In addition, since the horizontal portion of the corrugated cardboard is located in the lateral direction in the bent portion 6h and is easily bent, the impact is easily absorbed.

  In addition, since the bent portion 6h is connected to the rising portions 6a and 6b by the folding portion 6i, the base portion of the inner rising portion 6b is reinforced and hardly spreads in the left-right direction. As a result, the shock-absorbing property of the shock-absorbing member 6 is further improved without using a separate shock-absorbing material.

  Further, by covering the upper end of each bent portion 6h with the cover portion 6e, the downward impact of the packing member 5 is dispersed from the cover portion 6e to each bent portion 6h, so that the buffering property is stabilized. Further, since the bottom portion 6c, each bent portion 6h, and the cover portion 6e form a box with a closed cross section connected to each rising portion 6a, 6b, the buffering property is also stabilized from this point. Become.

It is a perspective view of the state where the buffer member concerning the embodiment of the present invention was assembled to the packing member, and stored in the cardboard box. It is a front side perspective view of the state which took out the assembly body which assembled | attached the buffer member to the packaging member from the cardboard box. FIG. 3 is a side perspective view of FIG. 2. It is a front side perspective view of only a packing member. It is a perspective view of the state which opened the upper opening of the packaging member by pulling up the handle part of the packaging member stored in the cardboard box, and folding up the upper surface (lid part) upward. It is a perspective view of a state. It is an expanded view of a packing member. It is a perspective view in the middle of the assembly of a packing member. It is a principal part perspective view of a packing member. It is an expanded view of a buffer member. (A) (b) is a perspective view in the middle of the assembly of a buffer member. (A) (b) is a perspective view in the middle of the assembly of a buffer member. It is the conventional buffer member, (a) is a principal part perspective view assembled | attached to the packaging member, (b) is a perspective view.

Explanation of symbols

5 Packing member 6 Buffer member 6a Outside rising part 6b Inside rising part 6c Bottom part 6d Outside slit 6e Covering part 6g Step part 6h Bending part 6i Folding part 6j Hook part 6k Insertion groove

Claims (2)

A cushioning member that holds both end portions in the length direction of the packaging member that packs the product,
The buffer member is made of cardboard, and is formed in a substantially U shape with a pair of rising portions in the length direction and a bottom portion connecting the lower ends thereof. While the longitudinal direction of the packing member is positioned, both side surfaces in the width direction of the packing member are locked and held by the locking portions of the rising portions. Bending portions that rise so that the upper end approaches the bottom surface are formed, and each bending portion is connected to each rising portion by a triangular folding portion, and each bending portion is orthogonal to the rising direction. A shock-absorbing member, characterized in that the transverse side of the cardboard is positioned in the direction.   The cushioning member according to claim 1, wherein an upper end of each of the bent portions is covered with a cover portion that extends from at least one of the rising portions.

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